You can activate the following extra features by purchasing Unlocker.
* No banner ads
* Tempo from 0.25x to 5.00x
* Pitch from -2 to +2 octaves (-24.00 to +24.00 semitones)
* Bass Booster
* Reverb Presets (it doesn't work well on many devices)

PERMISSIONS:
- READ_PHONE_STATE:
to auto-stop audio playback when your phone starts ringing
- WRITE_EXTERNAL_STORAGE:
to save playlists and bookmarks
- RECORD_AUDIO:
to get real-time audio waveform data for the visualizer. See the link below to get the details: http://developer.android.com/reference/android/media/audiofx/Visualizer.html
- WAKE_LOCK:
to prevent your device from sleeping during playback
- INTERNET:
- ACCESS_NETWORK_STATE:
for ads, and error & usage reporting
- MODIFY_AUDIO_SETTINGS
for volume control and sound effects

What's New
2.1.8 (October 24, 2014)
* You can now add all songs of an artist to a playlist
* You can now add all songs of a genre to a playlist
* New option to shuffle songs in a playlist (Playlist > Rearrange > Shuffle)
* Enabled headset double/triple press option on Android 4.0+ (Doesn't support some types of devices)
* Several bug fixes